The model shows the rig of the sailing ship Alexander von Humboldt II, a three-masted barque with steel masts and hull. It displays the sail configuration and the rigging in detail. This model documents the first new grand sailing ship to be built in Germany since the Gorch Fock. The structure's structure and calculations were carried out by HB Hunte Engineering GmbH and Marine Engineering Wollert GmbH using RFEM.
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Rig Alexander von Humboldt II
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Customer Project / View Only
| Number of Nodes | 340 |
| Number of Lines | 423 |
| Number of Members | 422 |
| Number of Surfaces | 5 |
| Number of Load Cases | 35 |
| Number of Load Combinations | 12 |
| Number of Result Combinations | 3 |
| Total Weight | 25,793 t |
| Dimensions (Metric) | 65.205 x 10.100 x 38.408 m |
| Dimensions (Imperial) | 213.93 x 33.14 x 126.01 feet |
| Program Version | 5.02.00 |
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A two-stage calculation is necessary to correctly model and calculate floating bodies (special rafts, pontoons, floating jetties, dredgers, floating houses, inflatable islands, floating cranes, houseboats, and so on).
The deformations of the FE nodes are always the first result of an FE calculation. It is possible to calculate strains, internal forces, and stresses based on these deformations and the stiffness of the elements.
For reinforced concrete components and structures whose structural behavior is significantly influenced by the second-order effects, Eurocode 2 provides the general method based on a nonlinear determination of internal forces according to the second-order analysis (5.8.6), as well as an approximation method based on the nominal curvature (5.8.8).
The aim of this technical article is to perform a design according to the general design method of Eurocode 2, using the example of a slender reinforced concrete column.
The aim of this technical article is to perform a design according to the general design method of Eurocode 2, using the example of a slender reinforced concrete column.
This technical article addresses the direct deformation analysis of reinforced concrete beams considering the long-term effects of creep and shrinkage. The direct calculation according to Eurocode 2 (EN 1992-1-1, Section 7.4.3) is explained using a single-span beam. Particular emphasis is placed on tension stiffening, behavior in the cracked state based on the distribution factor (damage parameter), and consideration of shrinkage and creep behavior.
Various design parameters of the cross-sections can be adjusted in the serviceability limit state configuration. The applied cross-section condition for the deformation and crack width analysis can be controlled there.
For this, the following settings can be activated:
- Crack state calculated from associated load
- Crack state determined as an envelope from all SLS design situations
- Cracked state of cross-section - independent of load
In the "Deflection and Design Support" tab under "Edit Member", the members can be clearly segmented using optimized input windows. Depending on the supports, the deformation limits for cantilever beams or single-span beams are used automatically.
By defining the design support in the corresponding direction at the member start, member end, and intermediate nodes, the program automatically recognizes the segments and segment lengths to which the allowable deformation is related. It also automatically detects whether it is a beam or a cantilever due to the defined design supports. The manual assignment, as in the previous versions (RFEM 5), is no longer necessary.
The "User-Defined Lengths" option allows you to modify the reference lengths in the table. The corresponding segment length is always used by default. If the reference length deviates from the segment length (for example, in the case of curved members), it can be adjusted.
This feature also contributes to the clearly-arranged display of your results. Clipping planes are intersecting planes that you can place freely throughout the model. The zone in front of or behind the plane is consequently hidden in the display. This way, you can clearly and simply show the results in an intersection or a solid, for example.
The results of solid stresses can be displayed as colored 3D points in the finite elements.
Can I use surface releases to separate two overlapping surfaces?
I have calculated a box girder. Which surface results or surface stresses can I use to evaluate the buckling behavior of the web plates?
Why is the effective depth different with the effective depth used in shear checks?
Can I optimize parametric cross-sections?
How can I check the determination of the required reinforcement?
Is it possible to consider shear panels and rotational restraints in the global calculation?
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